就業(yè)課程
認(rèn)證課程
企業(yè)課程5、.Which two of these statements are true of IPv6 address representation? (Choose two.)
以下關(guān)于IPv6地址代表的描述，哪兩個(gè)是正確的?
A. There are four types of IPv6 addresses: unicast, multicast, anycast, and broadcast.
IPv6有四種類型：?jiǎn)尾�，組播，anycast，和廣播 。錯(cuò) IPV6 沒(méi)有廣播
B. A single interface may be assigned multiple IPv6 addresses of any type.
一個(gè)單獨(dú)的接口可能指派給多種IPv6地址的任何類型。
C. Every IPv6 interface contains at least one loopback address.
每一個(gè)IPv6接口至少包括一個(gè)環(huán)回地址
D. The first 64 bits represent the dynamically created interface ID.
前64為代表接口ID的動(dòng)態(tài)產(chǎn)生。錯(cuò) 應(yīng)該是后64位
E. Leading zeros in an IPv6 16 bit hexadecimal field are mandatory.
重要的0在一個(gè)IPv6 的16為十六進(jìn)制區(qū)域內(nèi)是必須寫出來(lái)的。錯(cuò)。
Answer: BC
6、What are three basic parameters to configure on a wireless access point? (Choose three.)
在一個(gè)無(wú)線接入點(diǎn)上，哪三個(gè)基本參數(shù)需要配置?
A. SSID
B. RTS/CTS
C. AES-CCMP
D. TKIP/MIC
E. RF channel
F. authentication method
Answer: AEF
除了AEF 剩下的都是可選配置
7、Which of the following correctly describe steps in the OSI data encapsulation process? (Choose two.)
下列哪一項(xiàng)正確描述OSI數(shù)據(jù)封裝過(guò)程中的步驟?(選擇兩個(gè)。)
A. The transport layer divides a data stream into segments and may add reliability and flow control information.
傳輸層將數(shù)據(jù)分段 添加了對(duì)數(shù)據(jù)的傳輸控制信息 具有可靠性， 正確
B. The data link layer adds physical source and destination addresses and an FCS to the segment. 數(shù)據(jù)鏈路層增加源地址和目標(biāo)地址，同時(shí)增加現(xiàn)場(chǎng)校驗(yàn)序列到數(shù)據(jù)段中 錯(cuò) 應(yīng)該為數(shù)據(jù)幀中
C. Packets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information.
當(dāng)網(wǎng)絡(luò)層封裝包括源地址，目標(biāo)主機(jī)地址和有關(guān)協(xié)議的控制信息的幀時(shí)，數(shù)據(jù)包被創(chuàng)建網(wǎng)絡(luò)層封裝的是packet而不是frame。因此錯(cuò)
D. Packets are created when the network layer adds Layer 3 addresses and control information to a segment.
當(dāng)網(wǎng)絡(luò)層增加三層地址和控制信息組成數(shù)據(jù)段是，數(shù)據(jù)包被創(chuàng)建。 正確
E. The presentation layer translates bits into voltages for transmission across the physical link.
Answer: AD 表示層將比特轉(zhuǎn)化成電壓通過(guò)物理鏈路。錯(cuò)
